Water economizer device applicable to general fittings intended for its installation in hot and cold water feeding pipes and especially between the water supply pipe for shower artifacts whereby water consumption is reduced and the same water effect and the same sensation and result of conventional fittings is maintained. It is characterized by a coupled conduit between the water supply pipe and the water outflow artifact, within which a set of items are placed successively and operatively cooperatives between each other and which includes a piece that reduces water inflow, a piece that generates water turbulence and a piece that recovers outflow direction.